P1602 – Chrysler DTC

Chrysler DTC P1602 – PCM Not Programmed

DTC P1602 meaning on Chrysler

1. DTC P1602 stands for “PCM Not Programmed” on Chrysler vehicles.
2. This diagnostic trouble code indicates that the Powertrain Control Module (PCM) has not been properly programmed or configured.

Chrysler DTC P1602 symptoms

• Check Engine Light (CEL) illuminated on the dashboard.
• Vehicle may experience drivability issues such as rough idling, stalling, or poor acceleration.

Chrysler DTC P1602 causes

• PCM may not have been programmed correctly during installation or replacement.
• Software or hardware issues within the PCM.

Chrysler DTC P1602 seriousness

1. If left unresolved, DTC P1602 can lead to poor engine performance and potential drivability issues.
2. It is important to address this code promptly to ensure proper functioning of the vehicle.

How to diagnose DTC P1602 on Chrysler

1. Use a diagnostic scanner to retrieve the trouble codes stored in the PCM.
2. Check for any other related codes that may provide additional information.
3. Inspect the PCM connections and wiring for any signs of damage or corrosion.

How to fix DTC P1602 on Chrysler

1. Reprogram or flash the PCM with the correct software using a manufacturer-approved tool.
2. If the PCM is faulty, it may need to be replaced with a new unit.
3. Ensure all connections are secure and free of any issues.

How to erase DTC P1602 on Chrysler

1. After addressing the root cause of the issue, use a diagnostic scanner to clear the trouble codes from the PCM memory.
2. Perform a test drive to ensure the code does not return.